T17.800A Unspecified foreign body in other parts of respiratory tract causing asphyxiation, initial encounter

ICD-10-CM T17.800A: Unspecified foreign body in other parts of respiratory tract causing asphyxiation, initial encounter

ICD-10-CM code T17.800A is an active terminology record for an unspecified foreign body in other parts of the respiratory tract causing asphyxiation, initial encounter. The concept is classified under the semantic type of Injury or Poisoning and has a parent code, along with related subsequent encounter and sequela variations. 1 3 5

Plain-language overview

This diagnosis code is named Unspecified foreign body in other parts of respiratory tract causing asphyxiation, initial encounter, and it functions as an active ICD-10-CM terminology record. 1

What this code represents

The code T17.800A is assigned to the semantic type of Injury or Poisoning, and the terminology record indicates it has narrower concepts within the ICD-10-CM system. 1 3

The parent concept for this specific diagnosis is T17.800, which is labeled Unspecified foreign body in other parts of respiratory tract causing asphyxiation. 1

Coding details

Within the same code tree, T17.800D represents a subsequent encounter and T17.800S represents a sequela for an unspecified foreign body in other parts of the respiratory tract causing asphyxiation. 6

The code T17.800A is listed alongside T17.800D and T17.800S, which feature different seventh characters, while T17.900A represents an unspecified foreign body in an unspecified respiratory tract part. 5 6

Documentation considerations

The official terminology record includes a published abbreviation for this code, which is Unsp foreign body in oth prt resp tract causing asphyx, init. 1

What the sources add

While one terminology source defines the code's semantic type as Injury or Poisoning, another source provides broader code tree context by listing related initial, subsequent, and sequela encounter variations. 3 6

Coverage and utilization context

A Medicare billing and coding article lists various T17 codes concerning foreign objects in the pharynx and larynx, but the provided text does not explicitly mention T17.800A or its coverage parameters. 4

Clinical context

A veterinary respiratory disease text notes that initial signs suggesting an intranasal foreign body include sudden onset vigorous and persistent sneezing, though this does not define the target code. 2

Sources

1. ICD-10-CM T17.800A terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Respiratory System Diseases of Nonhuman Primates — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
4. Article - Billing and Coding: Swallowing Studies for Dysphagia (A56621) — cms.gov; accessed 2026-07-27.
5. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
6. ICD-10-CM 2024 | T17 - Foreign body in respiratory tract — unboundmedicine.com; accessed 2026-07-27.